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Vedi Specifiche Tecniche

LM22670MRE-ADJ +BOM

High efficiency

Produttore:

TI
ProduttorePart #:

LM22670MRE-ADJ
Scheda dati:

LM22670MRE-ADJ Scheda dati (PDF)
Part Life Cycle Code:

Transferred
Reach Compliance Code:

compliant
ECCN Code:

EAR99
HTS Code:

8542.39.00.01

LM22670MRE-ADJ Descrizione generale

Description for the LM22670The LM22670 switching regulator provides all of the functions necessary to implement an efficient high voltage step-down (buck) regulator using a minimum of external components. This easy to use regulator incorporates a 42 V N-channel MOSFET switch capable of providing up to 3 A of load current. Excellent line and load regulation along with high efficiency (> 90%) are featured. Voltage mode control offers short minimum on-time, allowing the widest ratio between input and output voltages. Internal loop compensation means that the user is free from the tedious task of calculating the loop compensation components. Fixed 5 V output and adjustable output voltage options are available. The default switching frequency is set at 500 kHz allowing for small external components and good transient response. In addition, the frequency can be adjusted over a range of 200 kHz to 1 MHz with a single external resistor. The internal oscillator can be synchronized to a system clock or to the oscillator of another regulator. A precision enable input allows simplification of regulator control and system power sequencing. In shutdown mode the regulator draws only 25 µA (typ). Built in soft-start (500 µs, typ) saves external components. The LM22670 device also has built-in thermal shutdown, and current limiting to protect against accidental overloads.The LM22670 device is a member of Texas Instruments’ SIMPLE SWITCHER® family. The SIMPLE SWITCHER® concept provides for an easy to use complete design using a minimum number of external components and the TI WEBENCH® design tool. TI's WEBENCH® tool includes features such as external component calculation, electrical simulation, thermal simulation, and build-It boards for easy design-in.

Caratteristiche principali

Features for the LM22670

Wide Input Voltage Range: 4.5 V to 42 V
Internally Compensated Voltage Mode Control
Stable with Low ESR Ceramic Capacitors
120 mΩ N-channel MOSFET PFM Package
100 mΩ N-channel MOSFET SO PowerPAD-8 Package
Output Voltage Options: -ADJ (Outputs as Low as 1.285 V) -5.0 (Output Fixed to 5 V)
±1.5% Feedback Reference Accuracy
500 kHz Default Switching Frequency
Adjustable Switching Frequency and Synchronization
–40°C to 125°C Operating Junction Temperature Range
Precision Enable Pin
Integrated Boot-Strap Diode
Integrated Soft-Start
Fully WEBENCH^® enabled
LM22670-Q1 is an Automotive Grade Product that is AEC-Q100 Grade 1 Qualified (–40°C to +125°C Operating Junction Temperature)

Specifiche

Source Content uid	LM22670MRE-ADJ	Part Life Cycle Code	Transferred
Reach Compliance Code	compliant	ECCN Code	EAR99
HTS Code	8542.39.00.01	Additional Feature	ALSO HAS ADJUSTABLE OUTPUTS AS LOW AS 1.285V
Analog IC - Other Type	SWITCHING REGULATOR	Control Mode	VOLTAGE-MODE
Control Technique	PULSE WIDTH MODULATION	Input Voltage-Max	42 V
Input Voltage-Min	4.5 V	Input Voltage-Nom	12 V
JESD-30 Code	R-PDSO-G8	JESD-609 Code	e0
Length	4.9 mm	Moisture Sensitivity Level	3
Number of Functions	1	Number of Terminals	8
Operating Temperature-Max	125 °C	Operating Temperature-Min	-40 °C
Output Current-Max	5.5 A	Qualification Status	Not Qualified
Seated Height-Max	1.68 mm	Surface Mount	YES
Switcher Configuration	BUCK	Switching Frequency-Max	600 kHz
Temperature Grade	AUTOMOTIVE	Terminal Finish	TIN LEAD
Terminal Form	GULL WING	Terminal Pitch	1.27 mm
Terminal Position	DUAL	Width	3.9 mm

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